Warp-beam for looms.



No. 656,386. Patented Aug. 2|, 1900.

.1. BETSGH.

WARP BEAM FOB LDOMS.

(Application filed May 4, 1900.) (No Mod'el.)

Witnesses. w, Inventor. kgg M dose}; Beifsoiz.

Attorneys PATENT OFFICE.

J OSEPII BETSCH, OF WOONSOCKET, RIIODE ISLAND.

WARP-BEAM FOR LOOMS.

SPECIFICATION forming part of Letters Patent No. 656,386, dated August21, 1900.

Application filed May 4, 1900.

To all whom it may concern:

Be it known that I, JOSEPH BETSOH, a resident of Woonsocket, in thecounty of Providence and State of Rhode Island, have invented certainnew and useful Improvements in Warp-Beams for Looms; and I do herebydeclare that the following is a full, clear, and exact descriptionthereof, reference being had to the accompanying drawings, and to theletters of reference marked thereon,which form a part of thisspecification.

This invention relates to the class of improvements in looms forweaving, and has for its object to make the warp or yarn beam of a loomadjustable as to its length between its heads so as to accommodate awide or narrow warp on the same loom, as it is sometimes necceesary todo. It is fully explained and illustrated in this specification and theannexed drawings.

Figure 1 shows a front elevation of a warpbeam with the adjustableheads. Fig. 2 is an enlarged end view of the warp-beam. Fig. 3 is a viewin perspective, also enlarged, of one end of the roll of the beamwithout its head.

The construction of my invention is as follows: The center roll of awarp-beam is made quite large because the strain of drawing the yarn oifof the roll when it is nearly unwound would, if the roll were small, betoo great for the Weaving, and being necessarily large it is madeusually of soft pine wood for lightness, as the close-wound yarn on theroll makes it very heavy to handle in putting it in the loom and ahard-wood or metal center roll would largely increase its weight. Thiswood roll A has an iron shaft D passing through its center, the ends ofwhich are turned to form journals outside the roll A, on which the beamturns when in the loom.

B B are two cast-iron heads having flanged collars O at their centersfitted to slide snugly on the center roll A. One of the heads B has aflanged groove (1 on its outer sides to receive a friction-strap, whichputs the proper amount of tension on the warp when weaving by puttingmore or less weight on the strap. The metal on the two opposite sides ofthe collars O is made thicker to receive the set-screws a a, that arefitted to screw through the collars Serial No. l5,451. (No model.)

and enter the grooves g 9, made in the wooden roll A. 7

As before stated, the roll A is made for good reasons of light softwood, in which the ends of the set-screws a a would soon work loose. Toprevent this, I put stifi metal bushings 71 h in the grooves g for theends of the setscrews to bear on and hold the heads fast as they may beset. hold the heads and assist the set-screws, I make grooves 02 in theroll A and cast keys 0) on the inside of the collars of each head thatwill fit in the grooves n when the heads are put on the roll. To adjustthe heads for wider or narrower warps, it is only necessary to unscrewthe set-screws a a, slide the heads from or toward each other, as thecase may be, and then screw the set-screws tight again. This makes theheads hold firmly to the roll, and as the beam is driven by one of theheads in winding the yarn on it and all of the strain of thefriction-strap in holding the warp at its proper tension against thebeating up of the lay comes on the hold of the set-screws To stillfurther help toon the roll it will readly be seen that the metal bushingof the grooves accomplish an important object, for if a head becomesloose and slips away from the yarn the whole warp is liable to bespoiled by the end layers breaking down, so that they cannot bereplaced.

Having thus described my improvements, I claim as my invention anddesire to secure by Letters Patent- A warp-beam for looms consisting ofa pair of metal heads having broad collars around their center openings,set-screws fitted to screw through said collars, a center roll of woodto hold said heads, longitudinal grooves made in said wooden roll andmetallic bushings fitted in said grooves to receive the ends of theset-screws, a key cast on the inside of collars, and grooves made insaid wooden roll to receive them, all in combination substantially asdescribed.

In testimony whereof Ihave hereunto set my hand this 30th day of April,A. D. 1900.

JOSEPH BETSOH.

In presence of-- HOWARD E. BARLOW, BENJ. ARNOLD.

